GB1231242A – – Google Patents
GB1231242A – – Google Patents
Info
Publication number
GB1231242A
GB1231242A
GB1231242DA
GB1231242A
GB 1231242 A
GB1231242 A
GB 1231242A
GB 1231242D A
GB1231242D A
GB 1231242DA
GB 1231242 A
GB1231242 A
GB 1231242A
Authority
GB
United Kingdom
Prior art keywords
barrel
workpieces
blacking
caustic
bath
Prior art date
1968-04-05
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1968-04-05
Filing date
1968-04-05
Publication date
1971-05-12
1968-04-05
Application filed
filed
Critical
1971-05-12
Publication of GB1231242A
publication
Critical
patent/GB1231242A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
C—CHEMISTRY; METALLURGY
C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
C23C22/62—Treatment of iron or alloys based thereon
Abstract
1,231,242. Blackening iron or steel. THOMAS WALKER Ltd. June 2, 1969 [April 5, 1968], No.16380/68. Heading C7U. In the «blacking» of small iron or steel workpieces in bulk involving treatment in a caustic blacking bath for a predetermined time at 280‹F. to 320‹F. the workpieces are first loaded into a rotatably mounted perforated barrel which is then pre-heated and immersed in the caustic blacking bath whilst being caused to revolve to ensure uniform mixing of the workpieces with the treating solution. In Fig. 1, the first of three tanks, all of which are gas-heated at 14 as shown, is filled with water, and acts as a pre-heater for perforated barrel 15 and the workpieces. Barrel 15 is transferred by hoist 26 to blacking tank 11, and carrier frame 18 seats on bracket 19 such that motor 25, via 23 and 20, rotates the barrel, and on completion of treatment, e.g. with caustic alkali and an oxidizing agent, the barrel 15 is transferred by hoist 26 to rinsing bath 12.
GB1231242D
1968-04-05
1968-04-05
Expired
GB1231242A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1638068
1968-04-05
Publications (1)
Publication Number
Publication Date
GB1231242A
true
GB1231242A
(en)
1971-05-12
Family
ID=10076277
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1231242D
Expired
GB1231242A
(en)
1968-04-05
1968-04-05
Country Status (1)
Country
Link
GB
(1)
GB1231242A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN104498930A
(en)
*
2014-12-06
2015-04-08
苏州欣航微电子有限公司
Surface passivation device of front mesh enclosure of fan
WO2018210377A1
(en)
*
2017-05-17
2018-11-22
Schaeffler Technologies AG & Co. KG
Method for the surface modification of at least one component and reactor device for carrying out the method
1968
1968-04-05
GB
GB1231242D
patent/GB1231242A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN104498930A
(en)
*
2014-12-06
2015-04-08
苏州欣航微电子有限公司
Surface passivation device of front mesh enclosure of fan
WO2018210377A1
(en)
*
2017-05-17
2018-11-22
Schaeffler Technologies AG & Co. KG
Method for the surface modification of at least one component and reactor device for carrying out the method
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Legal Events
Date
Code
Title
Description
1971-09-22
PS
Patent sealed
1980-01-16
PCNP
Patent ceased through non-payment of renewal fee
